Dynamic guide rail system for accurate installation of cofferdam pile foundation and implementation method

Abstract

The invention discloses a dynamic guide rail system for accurate installation of cofferdam pile foundations and an implementation method, and belongs to the technical field of bridge underwater implementation. The system comprises a door type bearing frame, an L-shaped track frame, a walking mechanism and a hoop guide device. The rigid connection between the frame cross beam and the frame supporting legs of the door-type force bearing frame is realized through angle steel and first bolts; the L-shaped track frame is spliced and fixed with the door-type force-bearing frame through the A-shaped bolt and is matched with the force-bearing inclined rod to form a stable structure; according to the walking mechanism, a driving roller is arranged on a groove of an L-shaped track frame, and the walking mechanism walks along a track through internal driving. The hoop guiding device can be opened and closed by means of a rotatable piston cylinder, and the perpendicularity of the pile body is dynamically leveled. The method is used for solving the problems that in traditional construction, the positioning precision of a pile foundation plane is poor, perpendicularity control is difficult, and construction efficiency is low.

Description

[0001] This invention belongs to the field of underwater bridge construction technology, and specifically relates to a dynamic guide track system and its implementation method for precise installation of cofferdam pile foundations. Background Technology

[0002] In the implementation process of "pile driving first, then cofferdam construction" for underwater bridge foundations, the accuracy of the planar position and verticality of the cofferdam piles is crucial to the success or failure of subsequent procedures. Traditional construction methods have the following common defects: (1) They rely on floating cranes for positioning, which is greatly affected by wind, waves and water flow, resulting in low planar positioning accuracy; (2) They lack an effective dynamic leveling mechanism, resulting in large verticality deviations; (3) They have low construction efficiency, long single pile installation time, poor quality stability, and difficulty in balancing operational convenience with high reliability of precision control. Summary of the Invention

[0003] This invention provides a dynamic guidance system and implementation method for the precise installation of cofferdam pile foundations. The purpose is to overcome the defects of existing technologies and achieve precise control of both the planar positioning and verticality of the pile foundations through modular design and coordinated adjustment mechanism.

[0004] A dynamic guide track system for precise installation of cofferdam pile foundations includes: a portal bearing frame, an L-shaped track frame, a traveling mechanism, and a clamping guide device; The portal frame includes a frame beam and frame legs. The frame beam and frame legs are connected by angle steel with a through hole and A-type bolts to form an integral support structure. The L-shaped track frame is composed of multiple modular L-shaped track frame units. Each L-shaped track frame unit has a corresponding through-hole on the outer layer through the first through hole on the inner side of its vertical plate. The units are spliced ​​together with A-type bolts and fixedly connected to the frame legs of the portal frame. The traveling mechanism is a H-shaped frame structure, with drive rollers at its four corners. The drive rollers are placed in the grooved tracks on the L-shaped track frame. A crossbeam is located in the middle of the traveling mechanism. The crossbeam is connected to the side rods on both sides of the traveling mechanism through the No. 1 through holes at both ends and A-type bolts. The clamp guide device includes a left and right opening clamp and a rotatable piston cylinder. There are multiple rotatable piston cylinders, with two rotatable piston cylinders located on both sides of the left and right opening clamp, and three rotatable piston cylinders located directly behind and on both sides of the left and right opening clamp.

[0005] Preferably, the horizontal plate of the L-shaped track frame is provided with a grooved track.

[0006] Preferably, the lower surface of the L-shaped track frame is provided with a through hole, and one end of the load-bearing diagonal rod is connected to it by an A-type bolt. The other end of the load-bearing diagonal rod is connected to the inner side of the frame leg of the portal frame by an A-type bolt, thereby forming a triangular support structure.

[0007] Preferably, each of the inner sides of the two side rods of the walking mechanism is provided with a set of fixed triangular pieces consisting of two triangular pieces with No. 2 through holes, and the rear side of the crossbeam of the walking mechanism is provided with three sets of fixed triangular pieces.

[0008] Preferably, the rotatable piston cylinder includes an L-shaped rod, a piston cylinder, and a spherical piston rod. One end of the L-shaped rod is connected to the fixed triangular plate assembly via a B-type bolt, and the other end is connected to the top of the piston cylinder via a ball joint. One end of the spherical piston rod is connected to the left and right opening and closing clamp.

[0009] The beneficial effects of this invention are reflected in: This invention provides a dynamic guide track system for the precise installation of cofferdam pile foundations. It achieves rapid assembly through modular design, precise planar positioning through track movement, and dynamic verticality correction during pile driving through a rotatable piston cylinder. It also includes: after the walking mechanism moves to the pile position on the L-shaped track frame, the clamp guide device and the rotatable piston cylinder work together to achieve precise placement of the pile foundation.

[0010] This invention has a stable structure, is easy to operate, and can effectively improve the efficiency of pile foundation construction, as well as improve the accuracy of planar and vertical dimensions. Attached Figure Description

[0011] Figure 1 This is a schematic diagram showing the connection between the frame beams and frame legs of the portal bearing frame of a dynamic guide track system for precise installation of cofferdam pile foundations according to the present invention.

[0012] Figure 2 This is a schematic diagram of a modular L-shaped track frame unit for a dynamic guide track system for precise installation of cofferdam pile foundations according to the present invention.

[0013] Figure 3 This is a schematic diagram of the modular L-shaped track frame unit splicing of a dynamic guide track system for precise installation of cofferdam pile foundations according to the present invention.

[0014] Figure 4 This is a schematic diagram showing the connection between the L-shaped track frame and the portal frame of a dynamic guide track system for precise installation of cofferdam pile foundations according to the present invention.

[0015] Figure 5 This is a schematic diagram showing the connection between the clamping guide device and the walking mechanism of a dynamic guide track system for precise installation of cofferdam pile foundations according to the present invention.

[0016] Figure 6 This is a schematic diagram of the rotatable piston cylinder of a dynamic guide track system for precise installation of cofferdam pile foundations according to the present invention.

[0017] Figure 7 This is a schematic diagram of the overall structure of a dynamic guide track system for precise installation of cofferdam pile foundations according to the present invention.

[0018] Figure 8 This is an enlarged schematic diagram of the fixed triangular plate group of a dynamic guide track system for precise installation of cofferdam pile foundations according to the present invention.

[0019] In the diagram: 1. Portal load-bearing frame; 11. Frame beam; 12. Frame leg; 2. L-shaped track frame; 21. L-shaped track frame unit; 22. Grooved track; 23. Guard plate; 3. Traveling mechanism; 31. Drive roller; 32. Mechanism beam; 33. Mechanism side rod; 34. Fixed triangular plate group; 4. Clamp guide device; 41. Left and right opening clamp; 42. Rotatable piston cylinder; 421. L-shaped rod; 422. Piston cylinder; 423. Spherical piston rod; 5. Load-bearing diagonal bar; a. No. 1 through hole; b. Type A bolt; c. Type B bolt; d. Ball joint; e. No. 2 through hole. Detailed Implementation

[0020] To enable those skilled in the art to better understand the present invention, the present invention will be described in detail below with reference to the accompanying drawings and embodiments. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0021] This invention discloses a dynamic guide track system for the precise installation of cofferdam pile foundations, which solves the problems of poor planar positioning accuracy and difficulty in verticality control of pile foundations in traditional construction.

[0022] Please see Figure 1-8 The present invention provides a dynamic guide track system for precise installation of cofferdam pile foundations, comprising: a portal bearing frame 1, an L-shaped track frame 2, a traveling mechanism 3, and a clamp guide device 4; Please see Figure 7 The present invention provides a dynamic guide track system for the precise installation of cofferdam pile foundations. Its overall structure includes a portal bearing frame 1 directly placed on the riverbed, an L-shaped track frame 2 fixed on the frame, a walking mechanism 3 that can move on the track, and a clamping guide device 4 for clamping and adjusting the pile foundations.

[0023] Please see Figure 1 , 2 5. As a further improvement, the portal frame 1 is constructed by connecting angle steel with a first through hole a using type A bolts b, and includes a frame beam 11 and frame legs 12.

[0024] Please see Figure 3 , 4 5. As a further improvement, the L-shaped track frame 2 is composed of multiple modular L-shaped track frame units 21 spliced ​​together through their first through hole a and using A-type bolts b. Its horizontal plate is provided with a grooved track 22, and is connected to the frame support leg 12 of the portal frame 1 through the load-bearing diagonal bar 5 to form a triangular support structure.

[0025] It should be noted that the walking mechanism 3 moves by its drive roller 31 being embedded in the grooved track 22 of the L-shaped track frame 2, and its frame is provided with multiple sets of fixed triangular pieces 34.

[0026] Please see Figure 6 , 7 As a further improvement, the clamp guide device 4 is connected to the walking mechanism 3 through multiple rotatable piston cylinders 42, of which two rotatable piston cylinders 42 are used to drive the left and right opening and closing clamps 41 to open and close, and three rotatable piston cylinders 42 are used to adjust the angle of the left and right opening and closing clamps 41.

[0027] It should be noted that the rotatable piston cylinder 42 is connected to the fixed triangular plate group 34 on the walking mechanism 3 by a B-type bolt c, and its spherical piston rod 423 end is connected to the left and right opening and closing clamps 41 by a ball joint d.

[0028] Please see Figure 1-8 The present invention provides an embodiment of a construction procedure for a dynamic guide track system for precise installation of cofferdam pile foundations: Pre-assemble the portal frame 1 at the designed location in the riverbed; Modular L-shaped track frame units 21 are spliced ​​and fixed to portal load-bearing frame 1, and load-bearing diagonal braces 5 are installed to form triangular supports. The traveling mechanism 3 is installed on the L-shaped track frame 2, and the clamp guide device 4 is connected to the traveling mechanism 3 through the rotatable piston cylinder 42; Open the left and right opening clamp 41, hoist the cofferdam pile foundation in, and then close the clamp to tighten it; The internal drive mechanism 3 drives the pile foundation to move to the designed pile position. During the pile driving process, the angle of the left and right opening and closing clamps 41 is dynamically adjusted by the rotatable piston cylinder 42 to correct the verticality of the pile foundation. After the pile is driven to the design elevation, open the left and right opening clamps 41 and move the system to the next pile position to repeat the operation.

Claims

1. A dynamic guide track system for precise installation of cofferdam pile foundations, characterized in that, include: Portal load-bearing frame, L-shaped track frame, traveling mechanism, and clamp guide device.

2. The portal frame includes a frame beam and frame legs, which are connected by angle steel with through holes and A-type bolts to form an integral support structure. The L-shaped track frame is composed of multiple modular L-shaped track frame units. Each L-shaped track frame unit has a corresponding through-hole on the outer layer through the first through hole on the inner side of its vertical plate. The units are spliced ​​together with A-type bolts and fixedly connected to the frame legs of the portal frame. The traveling mechanism is a H-shaped frame structure, with drive rollers at its four corners. The drive rollers are placed in the grooved tracks on the L-shaped track frame. A crossbeam is located in the middle of the traveling mechanism. The crossbeam is connected to the side rods on both sides of the traveling mechanism through the No. 1 through holes at both ends and A-type bolts. The clamp guide device includes a left and right opening clamp and a rotatable piston cylinder. There are multiple rotatable piston cylinders, with two rotatable piston cylinders located on both sides of the left and right opening clamp, and three rotatable piston cylinders located directly behind and on both sides of the left and right opening clamp.

3. The L-shaped track frame according to claim 1, characterized in that, The horizontal plate of the L-shaped track frame has a grooved track. Its lower surface has a through hole and one end of the load-bearing diagonal rod is connected to it by an A-type bolt. The other end of the load-bearing diagonal rod is connected to the inner side of the frame leg of the portal frame by an A-type bolt, thereby forming a triangular support structure.

4. The walking mechanism according to claim 1, characterized in that, The inner side of each of the two side rods of the walking mechanism is provided with a fixed triangular piece group consisting of two triangular pieces with No. 2 through holes, and the rear side of the crossbeam of the walking mechanism is provided with three fixed triangular piece groups.

5. The clamp guide device according to claim 1, characterized in that, The rotatable piston cylinder includes an L-shaped rod, a piston cylinder, and a spherical piston rod. One end of the L-shaped rod is connected to the fixed triangular plate assembly via a B-type bolt, and the other end is connected to the top of the piston cylinder via a ball joint. One end of the spherical piston rod is connected to the left and right opening and closing clamp.

6. A method for implementing a dynamic guide track system for precise installation of cofferdam pile foundations as described in any one of claims 1-4, characterized in that, Includes the following steps: S1: Assemble the portal frame and connect and fix the frame beam to the frame legs by means of angle steel with a through hole No. 1; S2: Multiple modular L-shaped track frame units are spliced ​​together using A-type bolts to form a complete L-shaped track frame. At the same time, the L-shaped track frame is connected to the frame legs of the portal frame using A-type bolts. S3: Install the load-bearing diagonal brace, so that both ends of the load-bearing diagonal brace are respectively connected and fixed to the lower surface of the L-shaped track frame and the inner side of the frame leg of the portal load-bearing frame; S4: Embed the drive roller of the walking mechanism into the grooved track of the L-shaped track frame, connect five rotatable piston cylinders to the walking mechanism, and then connect the other end of the rotatable piston cylinders to the left and right opening and closing clamps. S5: Open the left and right opening and closing clamps by the rotatable piston cylinder, hoist the cofferdam pile foundation into the clamps, and then close the left and right opening and closing clamps to clamp the pile foundation by the rotatable piston cylinder. S6: The internal drive causes the walking mechanism to move along the grooved track of the L-shaped track frame, thereby moving the pile foundation to the designed pile position; S7: During the pile driving process, the left and right opening and closing clamp angles are adjusted by the rotatable piston cylinder to dynamically correct the verticality of the pile foundation. S8: After the pile is driven to the set position, the left and right opening and closing clamps are opened by the rotatable piston cylinder, and then the walking mechanism is moved to the next pile position by the internal drive to repeat the operation.

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